TriMas Ownership | Who Owns TriMas?

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TriMas Ownership Summary

TriMas is owned by 67.40% institutional investors, 22.15% insiders, and 10.45% retail investors. Vanguard group is the largest institutional shareholder, holding 8.82% of TRS shares. Allspring Special Small Cap Value A is the top mutual fund, with 4.58% of its assets in TriMas shares.

TRS Ownership Benchmark

Type	Name	% Inst	% Insiders	% Retail
Stock	TriMas	67.40%	22.15%	10.45%
Sector	Consumer Cyclical Stocks	33.14%	14.17%	52.68%
Industry	Packaging & Containers Stocks	35.86%	17.83%	46.31%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Vanguard group	3.58M	8.82%	$127.01M
Blackrock	3.13M	7.64%	$80.07M
Allspring global investments	2.56M	6.31%	$92.98M
Blackrock funding, inc. /de	2.40M	5.90%	$84.98M
Dimensional fund advisors lp	2.17M	5.34%	$76.89M
Jefferies financial group	1.55M	3.82%	$55.04M
State street	894.37K	2.20%	$34.56M
Geode capital management	876.16K	2.16%	$31.06M
Nuveen	844.05K	2.08%	$29.92M
Morgan stanley	803.43K	1.98%	$28.48M

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
Barington capital group	275.00K	7.98%	$10.63B
Bellecapital	685.86K	4.32%	$24.31M
Advisory research	750.59K	3.81%	$29.00M
Alta fox capital management	336.14K	2.90%	$12.99M
Simcoe capital management	268.85K	1.51%	$10.39M
Blue grotto capital	308.62K	1.38%	$11.93M
Ophir asset management pty	221.86K	1.06%	$8.57M
Kennedy capital management	778.98K	0.67%	$30.10M
Redmond asset management	58.82K	0.53%	$2.09M
J. goldman & co lp	482.16K	0.47%	$18.63M

Top Buyers

Holder	Shares	% Assets	Change
Jefferies financial group	1.55M	0.28%	1.55M
Morgan stanley	803.43K	0.00%	569.08K
Blue grotto capital	308.62K	1.38%	308.62K
Goldman sachs group	474.57K	0.00%	276.32K
J. goldman & co lp	482.16K	0.47%	258.72K

Top Sellers

Holder	Shares	% Assets	Change
Capital investors	-	-	-2.89M
Fiduciary management inc /wi/	-	-	-2.61M
River road asset management	-	-	-1.39M
Irenic capital management lp	-	-	-901.93K
Pzena investment management	538.37K	0.06%	-763.89K

New Positions

Holder	Shares	% Assets	Change	Value
Jefferies financial group	1.55M	0.28%	1.55M	$55.04M
Blue grotto capital	308.62K	1.38%	308.62K	$11.93M
Tudor investment corp et al	243.77K	0.02%	243.77K	$9.42M
Cubist systematic strategies	213.93K	0.04%	213.93K	$8.27M
Point72 asset management	210.45K	0.01%	210.45K	$8.13M

Sold Out

Holder	Change
Ifp advisors	-1.00
Stone house investment management	-12.00
Raleigh capital management	-15.00
Stephens consulting	-15.00
Mather group, llc.	-17.00

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Dec 31, 2025	139	-35.05%	27,388,268	-29.94%	67	0.73%	67	-41.23%	50	-30.56%
Sep 30, 2025	201	21.82%	38,894,545	0.97%	95	1.06%	107	28.92%	70	18.64%
Jun 30, 2025	165	7.14%	38,519,456	-3.02%	94	0.99%	83	-1.19%	59	28.26%
Mar 31, 2025	152	4.11%	39,677,465	-2.01%	97	0.98%	83	23.88%	45	-6.25%
Dec 31, 2024	95	-37.09%	29,393,654	-23.97%	72	0.80%	39	-36.07%	30	-50.82%

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
Allspring Special Small Cap Value A	1.86M	4.58%	-3.80K
FMI Common Stock Investor	1.45M	3.57%	-230.00K
Vanguard Total Stock Mkt Idx Inv	1.16M	2.86%	-
Vanguard US Total Market Shares ETF	1.15M	2.83%	-197.60K
Advisory Research Partners	975.00K	2.40%	-
Vanguard Small Cap Index	828.61K	2.04%	1.44K
iShares Russell 2000 ETF	769.18K	1.89%	-150.62K
Champlain Small Company Fund, LLC	739.28K	1.82%	-4.85K
Templeton Global Smaller Comp Fund A	565.19K	1.39%	-
Vanguard Small Cap Value Index Inv	532.02K	1.31%	-4.21K

Recent Insider Transactions

Date	Name	Role	Activity	Value
Nov 12, 2025	Tredwell Daniel P	-	Buy	$2.35K
Nov 11, 2025	Fielkow Jeffrey A	-	Buy	$62.92K
Aug 11, 2025	Tredwell Daniel P	-	Buy	$2.35K
Jun 05, 2025	SHAPIRA ADRIANNE	-	Buy	$103.29K
Jun 04, 2025	SHAPIRA ADRIANNE	-	Buy	$31.57K

Insider Transactions Trends

Date	Buy	Sell
2026 Q1	-	-
2025 Q4	2	-
2025 Q3	1	-
2025 Q2	11	-
2025 Q1	11	1

TRS Ownership FAQ

Who Owns TriMas?

TriMas shareholders are primarily institutional investors at 67.40%, followed by 22.15% insiders and 10.45% retail investors. The average institutional ownership in TriMas's industry, Packaging & Containers Stocks , is 35.86%, which TriMas exceeds.

Who owns the most shares of TriMas?

TriMas’s largest shareholders are Vanguard group (3.58M shares, 8.82%), Blackrock (3.13M shares, 7.64%), and Allspring global investments (2.56M shares, 6.31%). Together, they hold 22.76% of TriMas’s total shares outstanding.

Does Blackrock own TriMas?

Yes, BlackRock owns 7.64% of TriMas, totaling 3.13M shares as of Jun 2024. This represents 0.00% of BlackRock's total assets, with a market value of 80.07M$. In the last quarter, BlackRock decreased its holdings by -27.274K shares, a -0.86% change.

Who is TriMas’s biggest shareholder by percentage of total assets invested?

Barington capital group is TriMas’s biggest shareholder by percentage of total assets invested, with 7.98% of its assets in 275K TriMas shares, valued at 10.63B$.

Who is the top mutual fund holder of TriMas shares?

Allspring Special Small Cap Value A is the top mutual fund holder of TriMas shares, with 4.58% of its total shares outstanding invested in 1.86M TriMas shares.

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